Question about 1996 Chevrolet Suburban
Sounds like the Booster is leaking or the hose to the booster.
Start the engine a spray some WD40 or CRC around the booster and hose .If the engine speed changes it would indicate a vacum leak.
Boosters are usually bolted from inside the car and can be tricky to get to.
Hope this helps.
Posted on Jun 28, 2009
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Posted on Jan 02, 2017
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